真空完全丧失下LNG罐式集装箱的储存规律研究 - 储存运输 - 液化天然气（LNG）网-Liquefied Natural Gas Web

真空完全丧失下LNG罐式集装箱的储存规律研究

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摘要:摘要LNG罐式集装箱(简称罐箱)成本低廉,灵活机动,能实现铁路、公路、水路联运,是LNG的一种理想运输方式。真空丧失是LNG罐箱的主要失效模式之一,会影响其安全使用。本文对1AA型40英尺LNG罐箱开展了真空完全丧失的测试试验,得到了维持时间及罐内压力、充满率、液相温度..

关键词：真空完全丧失 LNG 罐式集装箱储存规律研究

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摘要LNG罐式集装箱(简称罐箱)成本低廉,灵活机动,能实现铁路、公路、水路联运,是LNG的一种理想运输方式。真空丧失是LNG罐箱的主要失效模式之一,会影响其安全使用。本文对1AA型40英尺LNG罐箱开展了真空完全丧失的测试试验,得到了维持时间及罐内压力、充满率、液相温度随时间的变化数据。在试验基础上,采用饱和均质模型和俄罗斯模型从理论上研究了不同初始条件下LNG罐箱的储存规律,对比了两种理论模型在真空完全丧失工况下的适用性,研究结果表明:真空丧失条件下,俄罗斯模型对维持时间仍有较高的预测精度。本研究对LNG罐式集装箱的安全使用与应急处理有重要的实用价值。LNG tank container is low-cost,flexible,and capable of being transported by railways,highways,and waterways.Therefore,it is an ideal transportation method of LNG.Vacuum loss is one of the main failure modes of LNG tank container,which will affect the safety of use.In this paper,two 40-foot 1 AA LNG tanks were tested under the condition of complete vacuum loss.The storage time,the changes of pressure,filling rate and liquid temperature over time were obtained.On the basis of the test,the saturation homogeneity model and the Russian model were used to theoretically calculate the storage performance of the LNG tank container,and the applicability of the two theoretical models under the condition of complete vacuum loss was compared.The results show that the Russian model still has a high prediction precision on storage time after vacuum loss.This research has important practical value for the safe use and emergency handling of LNG tank containers.

作者罗若尹王博甘智华周伟明滕俊华沈铣周小翔海航董玉军许俊峰王艳清王琦朱晓维何远新李伟LUO Ruo-Yin;WANG Bo;GAN Zhi-Hua;ZHOU Wei-Ming;TENG Jun-Hua;SHEN Xian;ZHOU Xiao-Xiang;HAI Hang;DONG Yu-Jun;XU Jun-Feng;WANG Yan-Qing;WANG Qi;ZHU Xiao-Wei;HE Yuan-Xin;LI Wei(Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province,Zhejiang University,Hangzhou 310027,China;Cryogenic Center,Zhejiang University City College,Hangzhou 310015,China;Transportable Pressure Vessels Subcommittee of China Standardization Committee on Boilers and Pressure Vessels,Shanghai 200030,China;National Center of Oil Drilling and Refining Equipment Quality Supervision Inspection,Shanghai 201517,China;Nantong CJMC Energy Equipnient Co.,Ltd.,iVantong 260003,China;Tiger Gas(Shanghai)Limited,Shanghai 200126,China;Shanghai Gentco Logistics Co.,Ltd.,Shanghai 200121,China;Institute of Cold Transportation Equipment,CRRC Yangtze Co.,Ltd.,Wuhan 430212,China;Beijing Tianhai Cryogenic Equipment Co.,Ltd.,Beijing 101109,China)